Manipulation of mass transport rates using bead-in-a-tube method
Copyright © 2018 Elsevier B.V. All rights reserved..
In ultralow Pu analyses, the gold standard is thermal ionization mass spectrometry (TIMS), which requires pure sources to achieve its performance. This purity is achieved through step-wise purifications. In this work single, anion-exchange beads were trapped in the tubing to allow for dynamic solution cycling over the surface of the beads to improve the rates of metal complex uptake. Rates of Pu sorption on single ∼900 μm SIR-1200 and ∼620 μm Reillex-HPQ beads were determined for single beads trapped in a tube with syringe pump driven dynamic solution cycling over the bead, improving sorption and desorption rates. A static control was used as a comparison. Using 238Pu to enable facile activity-based measurements, rates were determined by measuring the residual Pu after contact with beads using liquid scintillation analysis (LSA) for fixed periods of time. Syringe pump driven dynamic solution cycling results in ∼5 and ∼15-fold improvements in the sorption rates for SIR-1200 and Reillex-HPQ. Impacts on desorption were also examined.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2019 |
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| Erschienen: |
2019 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:1586 |
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| Enthalten in: |
Journal of chromatography. A - 1586(2019) vom: 08. Feb., Seite 139-144 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Uhnak, Nicolas E F [VerfasserIn] |
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| Links: |
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| Themen: |
53023GN24M |
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| Anmerkungen: |
Date Completed 06.03.2019 Date Revised 06.03.2019 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.chroma.2018.12.002 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM291590268 |
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| 245 | 1 | 0 | |a Manipulation of mass transport rates using bead-in-a-tube method |
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| 500 | |a Date Completed 06.03.2019 | ||
| 500 | |a Date Revised 06.03.2019 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2018 Elsevier B.V. All rights reserved. | ||
| 520 | |a In ultralow Pu analyses, the gold standard is thermal ionization mass spectrometry (TIMS), which requires pure sources to achieve its performance. This purity is achieved through step-wise purifications. In this work single, anion-exchange beads were trapped in the tubing to allow for dynamic solution cycling over the surface of the beads to improve the rates of metal complex uptake. Rates of Pu sorption on single ∼900 μm SIR-1200 and ∼620 μm Reillex-HPQ beads were determined for single beads trapped in a tube with syringe pump driven dynamic solution cycling over the bead, improving sorption and desorption rates. A static control was used as a comparison. Using 238Pu to enable facile activity-based measurements, rates were determined by measuring the residual Pu after contact with beads using liquid scintillation analysis (LSA) for fixed periods of time. Syringe pump driven dynamic solution cycling results in ∼5 and ∼15-fold improvements in the sorption rates for SIR-1200 and Reillex-HPQ. Impacts on desorption were also examined | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Anion Exchange | |
| 650 | 4 | |a Bead-in-a-tube | |
| 650 | 4 | |a Plutonium | |
| 650 | 4 | |a Rate constants | |
| 650 | 4 | |a Single bead | |
| 650 | 7 | |a Plutonium-238 |2 NLM | |
| 650 | 7 | |a Resins, Synthetic |2 NLM | |
| 650 | 7 | |a Plutonium |2 NLM | |
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| 700 | 1 | |a Morrison, Samuel S |e verfasserin |4 aut | |
| 700 | 1 | |a O'Hara, Matthew J |e verfasserin |4 aut | |
| 700 | 1 | |a Murray, Nathaniel J |e verfasserin |4 aut | |
| 700 | 1 | |a Bartsch, Michael S |e verfasserin |4 aut | |
| 700 | 1 | |a Edwards, Harrison S |e verfasserin |4 aut | |
| 700 | 1 | |a Grate, Jay W |e verfasserin |4 aut | |
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